How is thin tree branch grafting done?

Thinking about the problems of apple breeders.

The breeder selects the apples he likes, (eats them, I hope) sows the 
pips and grows them. It would take some years for the seedlings to 
grow into fruiting trees. The way round this would seem to be to cut 
the seedlings and graft them onto the branches of a root-stock tree. 
Then you might hope to get the next generation a lot quicker. But such 
grafting will be a very fiddly job on stems much thinner than most 
grafts. How is it done?


Michael Bell

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